public class Example5_3{
	public static void main(String args[]){
		CheapGoods cheapGoods =new CheapGoods();
		//cheapGoods.weight=198.8;是非法的，因为子类对象的weight变量已经是int型
		cheapGoods.newSetWeight(198);
		System.out.println("对象cheapGoods的weight的值是："+cheapGoods.weight);
		System.out.println("cheapGoods用子类新增的优惠方法计算价格:"+cheapGoods.newGetPrice());
		cheapGoods.oldSetWeight(198.987);
		System.out.println("cheapGoods使用继承的方法(无优惠)计算价格:"+cheapGoods.oldGetPrice());
	}
}
